5-Chloro-2-(phenylsulfanyl)aniline CAS 4235-20-5
| CAS No. | 4235-20-5 |
| Molecular Formula | C12H10ClNS |
| Molecular Weight | 235.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 235.73 g/mol gives 5-Chloro-2-(phenylsulfanyl)aniline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Chloro-2-(phenylsulfanyl)aniline (CAS 4235-20-5), molecular formula C12H10ClNS and molecular weight 235.73 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H10ClNS, 5-Chloro-2-(phenylsulfanyl)aniline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Chloro-2-(phenylsulfanyl)aniline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H10ClNS |
| Molecular Weight | 235.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- methyl 2-chloro-1,3-benzothiazole-7-carboxylate (CAS 1196152-62-1)
- 2-Chloro-6-(m-tolylthio)pyridine (CAS 1242241-04-8)
- 3-Chloro-4-(phenylsulfanyl)aniline (CAS 32631-26-8)
- 7-chloro-3-methyl-thieno[2,3-c]pyridine-4-carboxylic acid (CAS 2306262-10-0)
- ethyl 2-chloro-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 332099-38-4)
- ethyl 2-chloro-6H-thieno[2,3-b]pyrrole-5-carboxylate (CAS 332099-01-1)
- methyl 2-chloro-1,3-benzothiazole-5-carboxylate (CAS 90225-03-9)
- 3-Chloro-N,N-diethylquinoxalin-2-amine (CAS 100116-89-0)
Recommended Standards
- 4-[(2-chlorophenyl)sulfanyl]aniline (CAS 4726-27-6)
- 4-(Benzylsulfanyl)-2-chloropyridine (CAS 71506-79-1)
- 4-((4-Chlorophenyl)thio)aniline (CAS 32631-29-1)
- 2-(Benzylthio)-4-chloropyridine (CAS 769163-29-3)
- 3-(2-(Pyrrolidin-1-yl)ethoxy)-9H-carbazole (CAS 57980-62-8)
- Tert-butyl (1-(2,4,6-trifluorobenzyl)piperidin-4-yl)carbamate (CAS 1286274-82-5)
- 5-Cyclopropyl-N-methyl-1H-pyrazole-3-carboxamide (CAS 1291012-89-9)
- (4E)-3-(4-Bromophenyl)-4-[2-(3-methylphenyl)hydrazin-1-ylidene]-4H-pyrazole (CAS 338414-37-2)
- 4-[(1Z/E)-1-(4-chlorophenyl)-3-morpholin-4-yl-3-oxoprop-1-enyl]-2-methoxyphenol (CAS 1786462-97-2)
- tert-Butyl 2-iodo-5-oxa-8-azaspiro[3.5]nonane-8-carboxylate (CAS 2852760-71-3)
- N-(4-Methylphenyl)-2-phenylalanine (CAS 1177343-49-5)
- (4-(4-Fluorophenyl)thiophen-2-yl)methanamine (CAS 1342643-84-8)
- Zonisamide (CAS 68291-97-4)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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